Term: Youden's Index

Glossary Definition

Last Updated: 2006-10-20

Definition:

The index is defined as sensitivity + specificity - 1, where sensitivity and specificity are calculated as proportions. Youden's index has minimum and maximum values of -1 and +1, respectively, with a value of +1 representing the optimal value for an algorithm.

Related terms 

• Sensitivity
• Specificity

References 

• Lix L, Yogendran M, Burchill C, Metge C, McKeen N, Moore D, Bond R. Defining and Validating Chronic Diseases: An Administrative Data Approach. Winnipeg, MB: Manitoba Centre for Health Policy, 2006. [Report] [Summary] (View)

Term used in 

• Finlayson G, Ekuma O, Yogendran M, Burland E, Forget E. The Additional Cost of Chronic Disease in Manitoba. Winnipeg, MB: Manitoba Centre for Health Policy, 2010. [Report] [Summary] (View)